US President Barack Obama says the United States and the European Union have agreed to boost their efforts for success on climate change at the Copenhagen conference next month.The fight against climate warming has highlighted serious differences between the US and the EU. The Europeans have criticized the Americans for not doing enough. Obama agrees greater effort is necessary: “We discussed climate change extensively and all of us agreed that it was imperative for us to redouble our efforts in the weeks between now and the Copenhagen meetings to assure that we create a framework for progress in dealing with what is a potential ecologic disaster.” EU Commission President Jose Manuel Barroso said: “Regarding climate change, I would want to say that I am more confident now than I was some days ago. As I said earlier, President Obama changed the climate on the climate negotiations, because with the strong leadership of the United States, we can indeed make an agreement. We are working on a framework agreement in Copenhagen that will be an important agreement for the world.” The symbol of Barcelona, la Sagrada Familia has been transformed into a monument for saving the climate. As delegates from 180 countries meet in the Spanish city to prepare for the Copenhagen conference, Greenpeace reminded the big powers of their responsibilities toward the poorer countries. They will reportedly need a 100 billion euros a year till 2020 to fight climate change.